Small Parts

Small Parts

Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.

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  • New - H&K German Ambidextrous Sling Pin Replacement O-Ring - HKP-19985
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    HK German Ambidextrous Sling Pin Replacement O-Ring

    H&K Heckler & Koch

    $5.95
    H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common wear/breakage part that does need to be replaced from time...
    $5.95
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    New - HKP HK UMP, USC Lower Bolt Catch - HKP-19565 HK UMP, USC Lower Bolt Catch

    HK UMP, USC Lower Bolt Catch

    HKP HK Parts

    $22.95
    HK UMP & USC Bolt Catch For Last Round Hold Open New HK USA lower bolt catch. Compatible With: HK UMP HK USC
    $22.95
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  • New - H&K HK MR762/417/G28 Firing Pin - HKP-16613
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    HK417, MR762, G28 Firing Pin

    H&K Heckler & Koch

    $64.95
    H&K HK MR762/417/G28 Firing Pin This firing pin is a must have wear and tear replacement item for your MR762 or HK 417 Firearm. Compatible With: MR762 HK 417 G28
    $64.95
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    New - H&K HK Mark 23/SOCOM Firing Pin - HKP-01670

    HK Mark 23, SOCOM Firing Pin

    H&K Heckler & Koch

    $47.95
    New HK German Mark 23 Firing Pin A great item to have on hand as these are a common wear item.  Compatbile With: Mark 23
    $47.95
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  • New - H&K HK P30/P2000 Release Latch & Decocker - HKP-01773
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    HK P30, P2000 Release Latch & Decocker

    H&K Heckler & Koch

    $32.95
    HK P30 & P2000 Release Latch & Decocker Compatible With: HK P30 HK P30L HK P2000 HK P2000SK
    $32.95
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  • New - H&K HK USPC/P30/45C Recoil Spring Washer Retainer - HKP-01594
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    HK45 Compact, USP Compact, P30 Recoil Spring Washer Retainer

    H&K Heckler & Koch

    $9.95
    New HK German Recoil Spring Washer Retainer This is the retaining washer that holds the spring captive on the end of the recoil assembly and pushes against the recoil spring. Compatible With: All USP Compact models P2000 P30 HK45 HK45C
    $9.95
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  • New - HKP HK 21E/11E (7.62x51/.308) Firing Pin - Titanium - HKP-17771
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    HK21E, HK11E Firing Pin - Titanium

    HKP HK Parts

    $49.95
    HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made  in the USA.  A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...
    $49.95
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    New - H&K Trigger Pack Ejector Lever Axle - HKP-01091 HK Trigger Pack Ejector Lever Axle

    HK Trigger Pack Ejector Lever Axle

    H&K Heckler & Koch

    $19.95
    H&K Trigger Pack Ejector Lever Axle HK German ejector lever axle pin for all HK trigger packs. This is the factory correct axle pin that holds the ejector lever in place in the trigger pack. Fits all SEF & Ambidextrous style HK trigger packs...
    $19.95
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  • New - H&K MR556/MR762 A4 Safety Lever - Right - HKP-21966 HK MR556, MR762 A4 Safety Lever - Right
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    HK MR556, MR762 A4 Safety Lever - Right

    H&K Heckler & Koch

    $13.95
    H&K MR556/MR762 A4 Safety Lever - Right H&K factory right-side selector lever for MR-series ambidextrous safety systems.  Compatible With: HK MR762 A1/A4 HK MR556 A1/A4
    $13.95
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  • New - HKP HK USC, HK UMP Cocking Handle Assembly - HKP-19155
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    HK USC, UMP Cocking Handle Assembly - Complete

    HKP HK Parts

    $149.95
    HKP Cocking Handle Assembly for HK USC, UMP Complete cocking handle assembly for HK USC and HK UMP platforms. US-made and built to factory-spec dimensions and includes all required components for proper function and replacement. Includes: Steel cocking...
    $149.95
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  • New - H&K HK Mark 23 Magazine Release - HKP-01772 HK Mark 23 Magazine Release
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    HK Mark 23 Magazine Release

    H&K Heckler & Koch

    $24.99
    HK Mark 23 Magazine Release  
    $24.99
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    $24.99
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  • New - H&K HK P2000/P2000SK/45/45C Right Slide Release Lever - HKP-01619
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    HK45, HK45 Compact, P2000, P2000SK Right Slide Release Lever

    H&K Heckler & Koch

    $49.95
    Right Slide Release Lever Compatible With: HK P2000 HK P2000SK HK45 HK45 Compact
    $49.95
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